string secret(string $question, bool $fallback = true) Prompt the user
ClearCompiledCommand class ClearCompiledCommand extends
bool hasOption(string $name) Determine if the given option is present.
int callSilent(string $command, array $arguments = array()) Call another
OutputInterface getOutput() Get the output implementation.
string|array argument(string $key = null) Get the value of a command argument
int call(string $command, array $arguments = array()) Call another console
void error(string $string, null|int|string $verbosity = null) Write a string
string ask(string $question, string $default = null) Prompt the user for
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